Hinge.



0. H. MARTIN.

HINGE.

APPLICATION FILED APR.17, 1914.

Patented Sept. 1, 1914.

THE )IL'ER'I'S PETERS CO,.'PHOTO-L|THO.. WASHINGTON. o c,

CHRISTIAN I-I. MARTIN, or AKRON, c1110.,

HINGE.

Application filed April 17, 1914. Serial No. 832,412.

To all whom it may concern: I

Be it known that I, CHRISTIAN H. MAR- TIN, a citizen of the United States and resident of Akron, in the county of Summit and State of Ohio, have invented new. and useful Improvements in Hinges, of which the following is a description, reference being had to the accompanying drawings,

which are a part of this specification.

This invention has for its object to provide a hinge of particular construction designed for giving the swinging object supported thereby a pivotal motion about two axes, one of which is fixed and the other of which'is movable in an are about the first. Hinges of this construction are found useful with. furniture where a door'or cover of a compartment is desired to swing free of the doorway on links which are required to move together in order to prevent binding of the door or scratching of the highly polished parts of the door and the doorway.

A particular purpose for the hinge construction of this invention is theswinging of the door of a compartment of a piano bench in such a manner that the door may assume an inclined position above the ordinary seat of the piano bench to constitute an inclined supplemental seat for use with player pianos.

lVith the above and other objects in view the invention consists in the hinge as here 1 in claimed and all equivalents.

Referring to the accompanying drawings in which like characters of reference indicate the same parts in different views: Figure 1 is a perspective view of a hinge constructed in accordance with this invention,

the adjacent parts of a piano bench, with which it is used, being shown in dotted lines, and the hinge being in its lower position for closing the compartment door supported thereby; Fig. 2 is a front view thereof with the hinge in its upright position; and, Fig. 3 is an end view thereof with the hinge in the position for supporting the cover in an inclined position to constitute a supplemental inclined seat.

In these drawings 10 indicates a pair of pivot plates which are loosely mounted at the ends of a connecting rod 11 so as to form hearings in which said connecting rod may turn. These pivot plates 10 are provided with screw openings 12 by means of which the pivot plates may be attached to the ends 1 Specification of Letters I-atent.v

of a door 1?; of bench ll or the like. The ends of the rod ll are squared or otherwise shaped to form a rigid I connection'with links 15 which bear against the outer facesof the pivot plates 10 and are llmlted 1n their swinging movements by having shoulders 16, preferably at an angle of about ninety degrees apart, to engage lugs 17 on the outer faces of the pivot plates 10. The two links 15 being rigidly mounted on the rod ll-are compelledto move together so as to maintain their parallel relation, and are limited to an arc of swinging movement determined by the position of the shoulders 16.. The connection of the links 15 with the rod 11 is near one end thereof, while their other ends are 'pivotally connected at 18 to pivot plates 19 which have screw openings 20 through which screws may be passed'for attaching them to the frame of the; piano bench, the pivotal connection 18 preferably being in the'form of a loose rivet.

With this hinge construction the door 13 may be swung from its closed position, in which it is suspended bythe links 15 in the manner shown in Fig. 1, to the position shown in Fig. 3 without binding and without scratching or marring the highly polished surfaces of the door or the bench, the two pivotal axes of the dooratthe center of the rod 11 and at the line connecting the pivotal points 18 remaining parallel at all times. lVithout a rigid connection between the links15 and the rod 11 the links would not remain parallel, and there would be a consequent binding of the parts when one side of the door was raised higher than the other, and the parts would not exactly fit into place in the two positions of the door, so that the finished surfaces would become scratched and marred. WVith the bail form of hinge connection, however, with the links fixed on the rod, there is no possibility of one side of the door being raised higher than the other, and all parts are required to fit exactly in their proper places in either position of the door so that there is no rubbing or scratching of polished surfaces, and the article presents a neat and attractive appearance at all times.

What I claim as new and desire to secure by Letters Patent is:

1. A hinge, comprising a pair of pivotally mounted links, a rod connecting the links and having rigid connection therethe pivot plat-es engaging the shoulders of with, and pivot plates pivotally mounted on the links.

the rod. In testimny whereof I nflix my signa- 2. A hinge, comprising at pair of pivotture, in presence of two Witnesses.

E ally mounted links, a rod connecting the CHRISTIAN H. MARTIN.

links and having a rigid connection there- Witnesses: itlnshonlders 0n the links, pivot plates ALLEN MARTIN, piiiotelly mounted on the rod, and lugs on J. P. HALE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, I). G. 

